Skate machine



March 26, 1929. H, B, TAYLOR 1,707,196

SKATE MACHINE Filed Nov. 12, 1926 iria-4- Patented Mar. 26, 1929.

UNITEDs'lfA'rrzsA HERBER'I B. TAYLOR, OF ROCHESTER, NEW ,YORIL ASSIGNOR TO GENERAL SIGNAL COMPANY, OF ROCHESTER, NEW YORK.

ICE.

SKATE MACHINE.

`.application filed November 12, 1926i` Serial No. 147,974.

` rlhis inventionrelates to anexnergency stop device for stopping railway cars and trains, and has more particularly reference to means ior holding such device and moving it from an inactive to an active position, andvice versa. p u v y This applicationfis a continuation in part, oit applicantscopending application, Ser. No. 72,264 tiled Nov. 30, 1925or skate machines, and reference is made to such application for a detailed showing anddescription oi? parts only broadly described inthis case.

ln railway practice, it sometimes occurs, particularly in classification yard systems, that track brakes operate improperly, or the operator has `failed to place such brakes in their active braking position, so tliat cars will collide at dangerous speeds andinjure one another. To avoid this possibility it is usual practice to place a skate on the track ahead oi such cars, onto which the cars can rideiand be retardedby sliding their front wheels along the track.

ln the employment ott power operated means for placing such skates, or derails iii desired, on the tracks, and removing them` y thereiroin, it is necessary that the skate be securely enough held by such means to retain it from being separated from the holding means by mistake while it must be held so that it can be slid tree from its holding means, when a car wheel rides up on it and tends t slide the skate along the trackrail.

W ith the above and other objectsfin mind it is proposed, according to thisinvcnton, to provide a power operated skate placing means, which will securely hold the skate in fined position, and will allow the skateto be readily detached `from the placing means, by action ot' a car wheel riding upon' it andtendin to slide it along a track rail.

llurther objects purposes, andcharacteristie features ofthe invention will appear as the description progresses, reference being had to the accompanying drawing, showing, solely by way of illustration, one embodiment ot the invention. In the drawing llig. l is a top plan view of a device according to the invention. y

l? E2 is a. "section online 2 2 of Fig. l, viewed in the direction ofthe arrows. i El asectiononline 3-3 ot Fig. 2, viewed inthe direction of the arrows.

`to separate from the arm Fig. 4L is a detail` elevation, with parts shown in section, of a detent used in the device. u

Referring to the drawing, there is shown a skate S carried by skate placing mechanism having a main support 1 bolted by hook bolts 2, directly to a track rail 3, supported on ties ll. The main support l has two upstanding lugs 5 which are cross drilled to providejournais ior a shaft 6. On the shalt 6 is pivoted a skate placing arm Y having hollow cylinders 8 at its ends. ln the cylinders 8 are plungers 9 urged outwardly ot the cylinders by springs (not shown) within the cylinders, these plungers being for a purpose to be explained below. y y u Theskate placing arm 7 is pivotally supported on the shail'ftt, and is adjustably scoured thereto by an operating arm 29 pinned` 'to the shaft (l by pins 30, the other end oil'i arm Q9 being' adjustably connected to the skate placing member 7, by screws l0 and ll, the screws l0 being threaded into the arm 29, while the screw 1l has its end bearing against such arms 29 to lock the parts in adjusted position. W'ith this construction it will be noted that the skate placing arm 7 is adj ustably `connected to theshait 6 so asto rotate with this he shalt G, as shown in `llig. l, has a uuiversal joint l2 und a driving telescopic joint 13, to permit proper alignment olf the iarts, the joint i3 'preventing danger to the drive mechanism, (not shown) connected to thc lett end 1thesha'tt- G, as viewed in l? l., should the skate S, "lor any reason whatsoever, tail Y, during operation with a car wheel. y y

The skate S, 1s oit the general shape shown 1n the drawings, and has its forward end `bifurcated to support a roller la to prevent sticking of the skate on the rail should it momentarily -be tilted forward on its iront end by a car wheel. u

At the lower side of the skate are two spaced downwardly projecting posts, l5, 16, `having tapered undcrcutgrooves into which a correspondingly shaped, tapered tongue l?, carried by the plungers 9 of the skate placing arm 7, accurately fits. y Due to 'the undercut ofthe groot-.fe and ton ,e le the skate cannot be lifted oil' oit' the arln the groove and tongue, the skate is readily ioo ' an d due to the taper oi" los i slidablero ofthe arm 7, in one direction,

' While held from such sliding detachment in the Vother direction. l

In order to prevent too ready sliding of the skate S offV of its supporting arm 7, a detent is provided. Y This vdetent comprises a cylindrical casing 18 having a seat 19 at one end )for aball 2O housed within the easing and projecting slightly therefrom. The ball 20 is forced outwardly of its casing by a helical 1 spring 21, carried Within the casing and bear- ,y ingjivith one end against` the ball and at the other aga-inst aV spring tension adjusting plug 22 threaded into the other end lof the casing.

' *With thisyarrangement, it'is necessary, in

The outer surface of the casing 18 is threaded atV 23 andhas a faced head 24C for vscrewing the entire detent assemblyrint-o a bore in the -part 16 (Fini `The inner vface of the tongue,` 17, has a socket iorced therein to accommodatethe projecting part of ball 20.

" adjustably,supported byk screws Q6, passing through a plate ties at 28. Y It is obvious fastened to'two adjacent from the above, that the detent device described,'iurnishes a simple yet very reliable meansffor preventing 'acciden- 1 tal detachment of askate from its supporting arm.

, VIn operation, when itis desired to place the skate S inoperative ,position on the track Vrailthe motor means forl rotating shaft 6 is set lin motion, to thus rotate the arm 7 about the-lugs 5 andvvith it the skate, until the latter Arests von the rail 3. In this position a car wheelean ride up on the skate and, slide the lskate oi of its retaining tongue 17, the detent :ball '2Ok `being vforced inwardly against its 1- spring 521k during the operation.

The above speciicwdescription of a device embedyingthis invention4 is given solely by -Way 'of '-iilustration, and is not intended, in

` Lby the support, a skate'connected to the said any manner whatsoever, in a limiting.Y sense. 5o

`Obviously,'this invention Ycan assume many diiierentphys'ical forms, and is susceptible of various modiiications,fand all such iorms and modifications, are desired to be included by this invention, as come Within the scope of the appended claims. l p 'Having described my invention, I now 1. In'an'l emergencytrainstop device, a

support, means toiix the support relative to a track rail,skate placing mechanism carried mechanism by aslidably detachable coupling, and balljand socket detent'means ref i 'sisting Aseparation f'offtliesepara-ble parts of 'thefcouplnim n j Y.

2. In an emergency train stop device, a support, means to fix the support relative to a track rail, skate placing mechanism carried by the support, a skate connected to the said mechanism by a slidably detachable coupling` consisting of integral unitary socket member and a plug member, and a spring .pressed detent yieldingly resisting separation of the separable ineinbeis of the coupling.

In an emergency train stop device, a support, means to iin' the support relative to a track rail, skate placing mechanism carried by the support,'a skate connected to the lsaid mechanism by a slidably detachable coupling, and a detent carried by one of the separable parts of the coupling and having a spring pressed memberrbearing against another of the separable parts ot the coupling.

4. In an emergency train stop device, a iixed support, a skate,a skate carrying arm, a slidably detachable coupling consisting ot a receiving and a received member connecting the skate to the arm, and a detent Within the Wall `of the receiving member yieldingly resisting separation of the skate and arm.

5. In an emergency train stop device, a fixed support, a skate, a skate carrying arm, a slidably detachable coupling connecting the skate to the arm, and a detent yieldingly resisting separation of the skate and arm, the detent including a casing carried by one member of the coupling, and a spring pressed plunger in the casing coacting with a receiving socket in another member of the coupling.

6. In an emergency train stop device, a fixed support, a skate, a skate carrying arm, a slidably detachable coupling connecting the skate to the arm, and a detent yieldingly resisting separation of the skate and arm, the detent including a casing carried by one meinberiof the coupling, and a spring pressed plunger in the casing coacting with a receiving socket in another memberof the coupling, and means for adjusting the tension oi the plunger spring.

7. slidably detachable coupling for brakevskates, comprising, a member having .i an undercut tapered groove, a beveled tapered tongue slidably receivable in the groove, and detent means resisting separation ot the tongue and the groove.

S. A slidably detachable ycoupling for brake skates, comprising, a member having a groove, a tongue slidably receivable in the groove, and a ball and socket detent means resisting separation of the tongue and the groove. Y

9. A slidably detachable coupling` for brake skates, comprising, a member having an undercut tapered groove, a beveled tapered tongue slidablyreceivable in the groove, a casing carried by the groove member, a spring pressed plunger projecting from the casing,

and a socket in the tongue normally receiv ing `the plunger.

l0. In an emergency train stop devise, a

support, means to liX the support relative to 5 a track rail, skate placing mechanism carried by the support, a skate connected to the said mechanism by a slidably detachable eouplng comprising separable plug and socket members7 and a yeldable detent in the wall of said socket member resisting separation 1o of the separable members of the coupling.

In testimony whereof I allix my signature.

HERBERT B. TAYLOR. 

